Modelling of Wind Turbine Loads nearby a Wind Farm

Wake Conference 2017

Roscher, B.^1 ; Werkmeister, A.^1 ; Jacobs, G.^1 ; Schelenz, R.^1

Center for Wind Power Drives, RWTH Aachen, Campus Boulevard 61, Aachen

52074, Germany^1

关键词: Internal loading;    Load spectrum;    Loading condition;    Maximum load;    Multibody simulations;    Turbulence intensity;    Wake effect;    Wind turbine loads;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/854/1/012038/pdf
DOI  :  10.1088/1742-6596/854/1/012038

来源: IOP

【 摘 要 】

Each wind turbine experiences a variety of loads during its lifetime, especially inside a wind farm due to the wake effect between the turbines. This paper describes a possibility to observe a load spectrum while considering wake effects in a wind farm by through the turbulence intensity. The turbulence intensity is distributed along the wind rose of Alpha Ventus. For each turbulence intensity, a Weibull characteristic is calculated. The resulting wind fields are used to determine the loads through a multibody simulation of an imaginary wind turbine located at FINO-1, representing a closely placed wind turbine at the outer edge of a wind farm. These loads are analyzed and summed up. As expected, the change of the turbulence intensity due to the wake effect has an impact on the internal loading of a wind turbine inside a wind farm. Based on the assumed loading conditions, the maximum loads increased by a factor of almost 2.5.